Oiling system



Feb. 27, 1923 L. B. HUBBARD.

0mm; SYSTEM.

FILED APR. 4, I922.

1% J67 of 2/ W COW Queuing 2 SHEETS-SHEET 2.

4 v iiatented Feb. 27, i923.

LLOYD B. HUBBARD, OF "HICHITA FALLS, TEXAS.

OIL-BING- SYSTEM.

Application filed April 4, 1922. Serial No. 549,467.

To full zvhom/itmay concern: plate 6 is located in said chamber adjacentBe it known that l LnoYn l3. Hummer), a said pipe opening. citizen ofthe United States. residing at The pipe 5 is designed to extend into theiVichita Falls, in the county of iita and crank casing (not shown) andis equipped 6 State of Texas, have invented a new and with a two wayvalve 7 adapted to be actuuseful Oiling System, oi? which the followated by any suitable means for bringing into ing is a, specification.communication with pipe 5 pipe 8 which ex- This invention relates toautomatic oiling tends into the crank chamber or pipe 9, the systems forautomobile and other combus latter being longer than pipe 8 and designed6 10 tion engines. as an emergency supply p'pe for purposes The objectof the invention is to provide presently to be described. A pipe 10leads a vacuum operated oiling system of this "from the bottom of tank 1and is designed to character in which pumps and gears are return the oilto the crank case to insure the eliminated and a perfect circulation ofthe proper circulation of the oil. 70 oil insured. A pipe 11 leads fromthe upper end of the Another object of the invention is to so vacuumchamber 2 to the intake manifold construct an oiling apparatus of thischain of the engine (not shown) and has a reacter that the motor will bestopped before duced mouth 24: opening into said chamber.

the supply of oil is exhausted, thus prevent- A cap 12 has threadedengagement with a" 75 2o ing the burning out of the bearings. boss orneck 14c carried by the top of chant Another object is to provide suchan appaher 2 and through which extends a valve ratus ope able to keepthe oil and the mot-air stem 15 having mounted on its upper end a cool,to filter out any gasoline which may ball valve 16 which may be termedthe atleak around the piston rings into the crank mospheric valve. Thecap 12 is provided 80 case and return it to the engine for use as with aplurality of openings 13 which permit fuel. atmospheric air to beadmitted to said cap Another object is to provide such an ap and whenthe ball valve 16 is raised, the air paratus equipped with an emergencyoil passes down into the vacuum chamber 2 for supply and with means to'stop the motor cutting oif the oil supply through pipe 5 in 5 when thereserve supply is exhausted. a manner to be presently described. A floatWith the foregoing and other objects in 17 is mounted in the chamber 2on the valve view which will appear as the description stem and isoperable for controlling the supproceeds, the invention resides in thecom; ply of oil admitted through pipe 5. A T- bination and arrangementof parts and in shaped valve 18 is also carried by the stem 90 thedetails of construction hereinafter do 15 and the shank or stem 19thereof is scribed and claimed, it being understood loosely engaged witha guide rod 23 dependthat changes in the precise embodiment of ing intothe chamber 2 from the top thereof. the invention herein disclosed maybe made The head 20 of the valve 18 is designed to within the scope ofwhat is claimed without close the elongated opening 2% which com 9.departing from the spirit of the invention. municates with the vacuumpipe 1.1 when In the accompanying drawing the oil in the chamber 2reaches a predeter- Figure 1 represents a central vertical mined height.section of the apparatus constituting this The valve 18 is shown mountedon the invention. stem 15 between two spaced disks 21 and 100 Fig. 2 isa horizontal section taken on the 22 as is shown clearly in Fig. 1. Thestem line 2-2 looking in the direction of the ar- 15 below the float 17is equipped with a stop rows to, and 25 which in its lowest position isyet above Fig. 3 1s a similar view taken on'the same spider 26, throughwhich thestem 15 extends line looking in the direction of the arrows 7).and which serves as a guide for stem 15, 105

This oiling system includes an apparatus In the use of. this apparatusthe suction in the form of a closed tank 1 having a pipe 5 leads fromthe vacuum chamber 2 and vacuum chamber 2 encased thereby and extendsinto the crank case (not shown), the which communicates therewith bymeans of lower end 8 of said pipe being immersed in an outlet 3controlled by a check valve t. An the oil a depth depending upon thedepth of 110 oil supply pipe 5 opens into the vacuum oil carried by thecrank case.

chamber 2 at the top thereof and a bathe hen the motor is started thesuction in .b-ility of the bearings being burned out.v

the manifold exhausts the air in chamber 2 creating a suction in pipe 5which operates. to draw the oil up through this pipe into the vacuumchamber 2. The oil discharged through pipe 5 strikes the baffie (3 whichguides or directs the entering oil to the 001.17 tom of the chamber.

As the oil rises in tank 2 the float 17 rises with it and when thechamber is full this float will engage the disk 21 and force the valvestem 15 upward opening the valve 16 permitting the air to enter chamber2 and release the vacuum therein. At the same time that the valve 16 isopened the valve 18 closes the opening 24 leading to the. vacuum pipe11. The opening of valve 16 and closing of valve 18 operates to stop theflow of oil through pipe 5 and permits the oil to escape from chamber 2into tank 1. through the check valve 4, from whence it passes outthrough pipe 10 back to the crank case. p

As the oil flows out of the chamber 2 the fioat l7 lowers until itengages the stop 25 on the valve stem 15 and thereby forces said stemdownward to the position shown in,

Fig. 1 closing the valve 16 and opening valve 18 thereby againestablishing a vacuum in chamber 2 and causing the oil to flow throughpipe 5 into chamber 2.

The emergency oil pipe 9 extends into the oil of the crank case agreater depth than the pipe extension 8 and may be used to restart theengine after it has stopped owing to lack of fuel supplied by pipe 8.This is accomplished by turning the valve Ttobring said pipe 9 intocommunication with pipe 5 and oil will be supplied until the'reserve isexhausted. v V

From'the above description it. will be ohvious'that when the suctionpipe 5 ceases to draw oil, air will be sucked in therethrough andcarried through the vacuum chamber out through port 241- into the vacuumpipe 11 and to the manifold between the carbureter and the engine. Thisinflowing air will render the material fed to the motor noncombustiblesiuce this supply of airavill cause the flowing of gasoline to cease andtherefore the motor will stop for lack of fuel. This stoppage of themotor when the oil ceases to be supplied prevents any possi- Shouldit bedesired to continue running the motor after the first stoppage thereof,the valve -7 is turned to bring into communication the reserve oilsupply pipe 9 and the operation above described. will be repeated andthe engine continueto run until the reserve is exhausted and the motorwill again stop asin the first instance.

More or less gasoline in liquid as well as vapor form enters the crankcase through leakage around the piston rings. The liquid gas mixes withthe oil in. the crank case and is sucked out into the tank 1, and beinghot the gasoline is vaporized and drawn into the intake manifold whilethe heavy oil passes to the bottom of the tank and is returned to thecrank case. Thus is the gas filtered from the oil in tank 1 and added tothe fuel supply in the intake manifold. The vaporized gas in thecrankcase is not filtered off until the supply of oil is exhausted andpipe-5 draws this vapor and air from the crank case into tank 1 fromwhich it is drawn into the intake manifold andwhen bustion, the motorwill stop for lack of fuel.

Since all lubricating oils when heated give off vapor capable ofcombustion, this system supplies a suitable amount of fuel to the motorin addition to the gasoline vapors which are sucked from the tank 1 andfed to the-motor through pipe 11.

This drawing off of the gasoline which has leaked into the crank caseleaves the lubricating oil much more serviceable as a lubricant. Owingto the coolingeffect produced the lubrication-will be more perfect th elubricating miles increased, and the life ofthe motor prolonged.

this mixture of, gas and air becomes too lean to support com- To permitoil to flow out of tank 1, an

pipe leading from the upper end of said vac-:

uum chamber, a neck carried by the top of said vacuum chamber with abore extending therethro-ugh, said neck and top having a bore connectingthe interior of the tank with the atmosphere, a perforated cap mountedon said neck, a vertically movable float controlled stein on its outerend to normally close the bore leading to the chamber-,anothervalvecarried by said stem to close said suction pipe .on theopening ofthe bore in the neck, a guide for saidlast mentioned valve dependingfrom the top of saidchamher, a float loosely mounted on said stem,

and a stop on said stem to engage said guide. In testimony that I claimthe foregoing as my own, I have hereto affi'xed mysignature in thepresence'of two witnesses. Y J

I LLOYD B HUBBARD, lVitnesses: V

V H. BURmisoN, J13, I MELVIN M. GARRETT.

